The Gravel Hill Prairies (GHP’s) of the Wabash River Valley are an endangered ecosystem in Indiana and provide optimal growing conditions for seven state endangered plants. Currently only four remnants are known to exist near Lafayette, IN, found by a previous study conducted in 1980. These ecosystems have been found to occur on soils classified as Rodman Gravelly Loams and Strawn-Rodman complexes which occur predominantly along the outwash terraces of the Wabash River and its tributaries. This research effort aimed to develop GIS maps to scout for and discover areas of unknown GHP remnants. The goal of the project is to assist conservation groups in the development of a strategy to preserve previously undiscovered remnants. Analysis have located a total of 809 areas of interest, of which 47 have been visited. These field scouting trips have found four GHP remnants, one tallgrass prairie remnant, and numerous high quality open-oak woodlands.